But in your home tank, there's no bacteria to be found. You have to introduce it, and that's where a lot of goldfish owners slip up because you can't just buy a fish the same day you get your tank.

The Department of Fish and Wildlife thinks that a few irresponsible ... there are other reasons you should keep that goldfish in its tank. More from Science Goldfish may look small and cute ...

Goldfish. Most people probably don’t give them a penny’s worth of thought. I never used to. Then my kid brought a few of the sparkly swimming gems home from a local fair and we were ...

Basically, the platform works by moving in a direction based on where the fish is in the tank. Once they had it set up, researchers used color-coded environments to teach the goldfish how to ...

If you keep pet fish, at some point, you may have encountered an escapee lying lifeless outside the water. Fish jumping out ...

The aquarium boasts 5,000 goldfish of 100 species swimming in about 160 fish tanks illuminated in various shades. While a 10-meter-long expanse is packed with lanterns, other areas are decorated ...